Grass Height Limits: Santa Rosa vs Sonoma
How do grass height limits rules compare between Santa Rosa, CA and Sonoma, CA?
Santa Rosa has fewer restrictions than Sonoma.
Santa Rosa, CA
Sonoma County
Santa Rosa requires property owners to maintain vegetation and prevent overgrown conditions. Grass and weeds exceeding 12 inches are considered a nuisance subject to abatement.
View full Santa Rosa rules →Sonoma, CA
Sonoma County
Within the Sonoma Valley Fire District jurisdiction (which includes the City of Sonoma), annual grasses must be cut to a maximum of 4 inches and maintained as defensible space out to 100 feet from any structure, mirroring California Public Resources Code § 4291 and Sonoma Valley Fire District (SVFRA) Annual Weed Abatement Regulations.
View full Sonoma rules →Key Facts Comparison
| Fact | Santa Rosa | Sonoma |
|---|---|---|
| Maximum Height | 12 inches before citation | - |
| Fire Season | Stricter vegetation clearance | - |
| Enforcement | Code Enforcement Division | - |
| Abatement | City may clear and bill owner | - |
| Maximum grass height | - | 4 inches (annual grasses) |
| Defensible space distance | - | 100 feet (Zones 1 & 2) |
| State authority | - | Cal. Pub. Res. Code § 4291 |
| Local authority | - | SMC § 14.10.045 |
| Cure period after notice | - | 30 calendar days |
| Enforcement agency | - | Sonoma Valley Fire District (SVFRA) |
Highlighted rows indicate differences between cities.
Santa Rosa FAQ
How tall can grass grow before it's a violation in Santa Rosa?
Grass and weeds over 12 inches are considered a nuisance. During fire season, vegetation management near structures is especially enforced.
What happens if I don't mow my lawn?
Code Enforcement will issue a notice to abate. If you fail to comply, the city may clear the vegetation and charge you for the cost.
Sonoma FAQ
Does the 4-inch rule apply to my irrigated front lawn?
No. PRC § 4291 and SVFRA regulations target dry annual grasses and wildland fuels. A green, irrigated ornamental lawn that is not adjacent to wildland vegetation is not the target of the mow-to-4-inches rule, though it is still subject to the City's water-efficient landscape rules in SMC Ch. 14.32.
What happens if I miss the abatement deadline?
SVFRA can hire a contractor to mow your property and bill you for the cost plus an administrative fee. If unpaid, the charge is recorded as a special assessment / lien against the property under Government Code §§ 38773.1-38773.5 and SMC § 14.10.045.
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